A series of C2-symmetric and asymmetric chiral thiourea derivatives were synthesized from commercial L-phenylalanine. Al......

相转移催化反应的反应条件温和，反应产率高，操作简单，是不对称合成反应中发展起来的一个新兴领域。本文主要阐述了C2对称的手性季铵盐......